The utility model provides a long -range belt conveyor inspection device of monorail direction wiping line power supply, the utility model belongs to the technical field of mining mechanical breakdowndiagnoses auxiliary assembly, in particular to monorail direction wiping line power supply belt conveyor inspection device who is used for the discovery of long -range belt conveyor trouble for beltconveyor patrols and examines equipment cost height, the short technical problem of battery continuation of the journey mileage in solving prior art. Include: dolly, guide rail and wiping line power supply system patrol and examine, guide rail is the monorail, wiping line power supply system includes: wiping line track, smooth touch multitouch and power regulator, guide rail and wiping line trackbe parallel arrangement closely, and certain interval is separated by, it cooperatees with guide rail to patrol and examine the dolly, smooth touch multitouch is connected with the cooperation of wiping line track, and smooth touch multitouch is connected with power regulator, power regulator gives and patrols and examines the dolly power supply. Compared with the prior art, the utility model overcomes the short problem of lithium cell power supply continuation of the journey mileage is moved more in a flexible way, and the cost has been practiced thrift to the weight that has alleviateed equipment.